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Heavy Duty​

Heavy Duty​

Case study

Development of gaskets for heavy machinery fuel tank caps​

  • Cork and rubber gaskets

    National is a Swedish partner company of Amorim Cork Composites for sealing solutions focused on the automotive industry. As it specialises in heavy machinery, selected Amorim Tech Seal solutions to seal the fuel tank caps of tractors, trucks, and other heavy vehicles. ​

    The rubber-applied cork gaskets fully matched the customer's requirements in terms of performance, durability, and quality. Presenting high mechanical, thermal and chemical resistance to the various types of fuels and bio diesel (FAME - Fatty Acid Methyl Ester) used in different regions of the world, where vehicles are commercialised.

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  • Performance and sustainability

    In addition to the performance of Amorim Tech Seal products, the choice of a solution based on cork and rubber was also motivated by the fact that cork is a natural and sustainable material. ​

    The sector has been increasingly focused on the end-of-life impact of vehicles, looking for materials that can be recycled and contribute to a circular economy, such as cork or the NRB composite, present in several references in the range.

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Amorim Tech Seal Product range

Material Material description Density
(kg/m³)
Hardness
(pts)
Shore A
Compressibility
% (400 psi)
Traction resistance
(Mpa)
Temperature resistance (ºC)
TS2050 (D205) Cork/SBR blend. Suitable for all engine and gear oils, and coolants. 830* 60-80 15-35 2* -30ºC a 90ºC
TS4600 (GT46) Cork/SBR blend. Suitable for all engine and gear oils. >640 70* 25-45 >1,03* -30ºC a 110ºC
TS1521 Cork/SBR blend. Suitable for most lubrificant fluids. 550-750 50-70 35-50 >0,8 -30ºC a 110ºC
TS1400 Cork/NBR blend. Suitable for fuels, bio-fuels, oils and coolants. 1100* 75-90 10-22 >3,5 -30ºC a 125ºC
TS7100 (1) Cork/NBR blend. Suitable for fuels, bio-fuels, and oils. 900* 60-75 20-45 2,5* -30ºC a 110ºC
TS7111 (NC711) (1) Cork/NBR blend. Suitable for all engine and gear oils, and coolants. 800-960 70-85 10-25 >2 -30ºC a 110ºC
TS7000 Cork/Silicone blend. Suitable for coolants, and acceptable to most lubrificants. Used for very high and low temperatures. 1100* 65-80 10-30 >1,7 -60ºC a 175ºC
A099 Cork/Silicone blend for injection molding.
Suitable for coolants, and acceptable to most lubrificants. Used for very high and low temperatures.
Dependente do processo de injeção 63-73 10-30* >3 -60ºC a 175ºC
TS7610 (NL76) Cork/Polychloroprene foamed blend. Suitable for all engine and gear oils, and coolants. 470-620 30-50 30-45
(@100psi)
>0,5 -20ºC a 110ºC
TS2030 Cork/Polychloroprene blend. Suitable for all engine and gear oils, and coolants. 750-850 60-80 25-40 >1,96 -40ºC a 110ºC
TS7110 (711G) Cork/Epichlorohydrin (ECO) rubber blend. Exceptionally suitable for fuels, bio-fuels, oils and coolants. 1100* 70-85 15-30 4,5* -45ºC a 135ºC

*Typical value

Certifications and Approvals
(1) UL157 Listed · Gaskets and Seals - requirements cover test procedures and performance criteria for the evaluation of nonmetallic gasket and seal materials for specific end products.

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